abc7 news health and science reporter carolyn johnson has a look. >>> normal breaths for now. >> richard was a few strokes from the green when a strange feeling interrupted his round of golf. he knew he was uncomfortable, but the symptoms were vague. >> i got a burning sensation across my chest. it was not a pain. >> now it could be gastrointestinal, it could be their lungs or it could be a heart blockage and my job is listening to them and ferret out more selective symptoms that may pinpoint whether they have heart disease. >> the cardiologist said the goal is to avoid running everybody through tests which are effective but also carry side effects. >> a lot of radiation. ten years of radiation you get in that procedure. >> it includes prescreening patients with a cardio stress test, often involving a treadmill. now a bay area company believes it has an alternative that can help spot which patients are more likely suffering from heart disease more quickly. >> maybe an alcohol pad, bandaid, gauze. >> it was developed by palo alto based cardio dx. it involves a blood draw that can be done